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Finding the Fourth Proportional to 339,805.32, 468,943.38 and 186,855.15

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Solution

The fourth proportional to 339,805.32, 468,943.38 and 186,855.15 is: 257,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,805.32 : 468,943.38 = 186,855.15 : x
  2. Step 2: Convert to fraction form
    339,805.32/468,943.38 = 186,855.15/x
  3. Step 3: Cross multiply
    339,805.32x = 468,943.38 × 186,855.15
  4. Step 4: Simplify right side
    339,805.32x = 87,624,485,611.41
  5. Step 5: Solve for x
    x = 87,624,485,611.41/339,805.32
  6. Step 6: Final answer
    x = 257,866.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.